About what @Narure said...
I do not agree with having guild advantages in the form of unique items among other in-game things as it will turn this Spotlight into a heavy competition, besides being completely OOC. It's not what I fancy GMs giving rewards to guilds that "meet their objectives", specially due to the fact many RP-based guilds have objectives that aren't quite achievable with the currently avaliable game systems of this alpha release, and in fact will encourage people seeking objectives like "Kill 10 Ulbernauts", "Mine lots of gold to get 500k" and the like for their guilds, crumbling into a never seen before level of mediocrity.
Finally, GM supporting exclusively a single guild? Events already are done sparsely due to the lack of time/matching timezones, and now they will happen only to a single guild for a determinated timeframe while the rest of the community remains dry on GM Events? I do not think so. If there are going to be advantages for those that come to the spotlight, they should definitively be OOC and out-of-game ones.
And lastly this may open space for biased "rewardings" of guilds as well, as we humans are prone to be influenced by such things, one way or another, and sometimes they just happen.
Well people seem to be imspired by pretty sigs. Maybe have a editors choice type thing where you say what you think of certain guilds to get the ball rolling. Possibaly make it so people can say who they have voted for and why to try and up pacipitaion?
An "Editor's Choice" perhaps is a good idea, if handled by people that are expected to have a higher NPOV than most(mature people with "unguilded" characters in dev team perhaps). Making it in a way people have say who they have voted for and why is something that won't fix anything at all, what really is needed is larger numbers of people voting.